It seems the problem here may be using the simulator and not a device with a A12 or newer chip. Running on my XS Max, prior to iOS 14 beta 5 it gave different errors, but kinda works with beta 5. Not sure if it is the slower speed of my XS Max vs whatever phone was used in the demo, but with the sample movie it takes until the first toss to properly detect and prepare for tracking, making it exclude the first toss from the stats. And after the last toss, the movie ends before it gives all the stats for that toss. Plus since it did not count 8 tosses, it never makes to the summary screen. I worked around that by editing the video to add more time before the first toss, and adding more time after the final toss so that it counts all 8 tosses and makes it to the summary screen. I assume a faster device may work fine with the sample movie, but the only device available to me with a compatible chip was an XS Max.

In regards to the Action and Vision example app, it will not work in the simulator. According to the Readme file, it needs an A12 or later processor. (Maybe it works with the DTK? Don't know as I don't have one.) So you will have to run it on your XS. It also did not work prior to beta 5, but AFAIK should work with beta 6 on your XS. The other problem I had was the sample movie had too little time ahead of the first bean bag toss (at least for my XS Max) and so scoring did not start until the second toss. And had too little time after the last toss. To work around those I edited the sample video to repeat more time at the start, and repeat more time at the end to it can score all 8 bag tosses and display the summary before the movie ends.